This paper presents a multi-processor control system for a general purpose five-level cascaded inverter for real time power system applications. Practical design considerations for the digital controller architecture as well as the power converter are discussed and a 3 kVA laboratory prototype is presented. As a case study, a StatCom with battery energy storage was implemented on this multi-processor controlled inverter system. To eliminate the troublesome PI parameter tuning and the limitation of small signal models, which exist in conventional control for StatComs, a new and simple control method based on large signal model was designed to realize four-quadrant power injections into a grid. Experimental results are provided to support the proposed concept.

Meeting Name

19th Annual IEEE Applied Power Electronics Conference and Exposition (2004: Feb. 22-26, Anaheim, CA)


Electrical and Computer Engineering


United States. Department of Energy


Supported by the DOE Energy Storage Program through Sandia National Laboratories under Contract BD-0071-D

Keywords and Phrases

3 KVA; Battery Energy Storage; Cascaded StatCom; Cascaded Inverter; Control Systems; Digital Control; Digital Controller Architecture; Energy Storage; Four-Quadrant Power Injection; Invertors; Multiprocessing Systems; Multiprocessor Control System Architecture; Power Converter; Power Convertors; Prototype; Prototypes; Real Time Power System Applications; Static VAr Compensators

International Standard Book Number (ISBN)


Document Type

Article - Conference proceedings

Document Version

Final Version

File Type





© 2004 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Feb 2004